Assembly and mounting of the pump

During assembly work, care must be taken to ensure that the pump does not run dry. If the coolant pump runs dry, it can be damaged and the pump might fail later.

If the pump is removed, it must be filled with coolant before being placed aside. Otherwise, the bearing points of the pump could stick. When fitted later, this could endanger the pump startup and thus disable the entire heat management. If the coolant pump startup is prevented by sticking bearings, this can result in severe engine damage! If the pump still runs dry during storage, the impeller must be turned by hand to loosen the sticking bearings before the coolant hoses are fitted. Directly after this, the system must be filled with coolant.